This is very very similar to the Suliin Sorcerer / Thaumaturge as seen here and in the Tome of Awesome. I don't know if you modified the class or thought of this idea on your own, but if it's the former then I recommend you credit the original creators.

I'm not a fan of Advanced Learning, because there are so many spells on the players' list that they will only be using it on dumpster diving for high-impact spells. I would prefer to see more [Reserve] feats, especially since the intent of including those seems to be giving this guy some extra reliability.